Q)
(chatquestion)...Date
Page-
radio activ
B aru 20 n nutes
xespectinely Inikil
Half-lives of two
eliments
A and
and go minutee , relpeth'rely Initly
Hhe dample hewe equal oh Nule'
the rauto of
After 8ó minutes
ducaged
numbey A f B nueler will
1 Answer
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